Try These simple steps...logout then....try to clear the cookies of your browserupdate your flash player..reloginif nothing happen then try to login with different browser..chrome is best browser for chesscube...firefox have some technical flash problem in these days

Its funny, stop saying people to do that, it doesn't work!!!!!The problem is in the server side, no the PC or the browser.And if there's not a problem on the server, its the app.Someone said he/she was able to log in with another PC.1: thats stupid, you're saying we have to change our PC because of ChessCube.2: maybe the server closes connections from some PCs, dont think so.3: The true: The app isnt working, login fails for some compatibility problems.

Sory about bad english, and stop telling us to delete the cookies, try another browser or, oh yes you really said this, try another PC.